docs: async def async_poller(client, initial_response, deserialization_callback, polling_method):
      """Async Poller for long running operations.
  
      :param client: A msrest service client. Can be a SDK client and it will be casted to a ServiceClient.
      :type client: msrest.service_client.ServiceClient
      :param initial_response: The initial call response
      :type initial_response: msrest.universal_http.ClientResponse or msrest.pipeline.ClientRawResponse
      :param deserialization_callback: A callback that takes a Response and return a deserialized object. If a subclass of Model is given, this passes "deserialize" as callback.
      :type deserialization_callback: callable or msrest.serialization.Model
      :param polling_method: The polling strategy to adopt
      :type polling_method: msrest.polling.PollingMethod
      """
  
      try:
          client = client if isinstance(client, ServiceClientAsync) else client._client
      except AttributeError:
          raise ValueError("Poller client parameter must be a low-level msrest Service Client or a SDK client.")
      response = initial_response.response if isinstance(initial_response, ClientRawResponse) else initial_response
  
      if isinstance(deserialization_callback, type) and issubclass(deserialization_callback, Model):
          deserialization_callback = deserialization_callback.deserialize
  
      # Might raise a CloudError
      polling_method.initialize(client, response, deserialization_callback)
  
      await polling_method.run()
      return polling_method.resource()